Pandemonium at the School Trip
Cover of High School DxD Volume 9 featuring Rossweisse
Kana ハイスクールD×D9 修学旅行はパンデモニウム
Romaji Haisukūru Dī Dī 9: Shūgakuryokō wa Pandemoniumu
Air/Release Date April 20, 2011
ISBN 978-4-8291-3628-7
Previous The Work of a Devil
Next Lion Heart of the School Festival

Pandemonium at the School Trip (ハイスクールD×D9 修学旅行はパンデモニウム) is the ninth novel of the High School DxD series. The novel covers part two of the Heroic Oppai Dragon arc.


Devils, Fallen Angels and, Dragons -- they are the enemies of mankind. This is common sense.

And you -- both a Devil and a Dragon; humans cannot regard you as anything but a threat.



  • Life.0
  • Life.1: "Yeah, Let's Go to Kyoto!"
  • Life.2: "Arrival at Kyoto"
  • Life.3: "The Group of Heroes Has Arrived!"
  • Life.4: "Showdown in Kyoto! Gremory Family vs. Hero Faction!"
    • Maven.
  • New Life.
    • Boss×Boss.
    • Vali Lucifer.
    • Bael.
    • Heroes.
  • Afterword


Main Characters Returning Characters New Characters Antagonists



  • The word Pandemonium in modern Latin denotes to the place of all demons, in Milton's Paradise Lost, from pan- ‘all’ + Greek daimōn ‘demon’. So the title itself is a reference in context, Kyoto being the place where all the Devils on the school trip are at.




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